/*
Copyright (C) 1996-1997 Id Software, Inc.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/
// client.h

typedef struct
{
    vec3_t	viewangles;

// intended velocities
    float	forwardmove;
    float	sidemove;
    float	upmove;
} usercmd_t;

typedef struct
{
    int		length;
    char	map[MAX_STYLESTRING];
} lightstyle_t;

typedef struct
{
    char	name[MAX_SCOREBOARDNAME];
    float	entertime;
    int		frags;
    int		colors;			// two 4 bit fields
    byte	translations[VID_GRADES*256];
} scoreboard_t;

typedef struct
{
    int		destcolor[3];
    int		percent;		// 0-256
    double  time;
    int     initialpct;
} cshift_t;

#define	CSHIFT_CONTENTS	0
#define	CSHIFT_DAMAGE	1
#define	CSHIFT_BONUS	2
#define	CSHIFT_POWERUP	3
#define	NUM_CSHIFTS		4

#define	NAME_LENGTH	64

//
// client_state_t should hold all pieces of the client state
//

#define	SIGNONS		4			// signon messages to receive before connected

#define	MAX_DLIGHTS		32
typedef struct
{
    vec3_t	origin;
    float	radius;
    float	die;				// stop lighting after this time
    float	decay;				// drop this each second
    float	minlight;			// don't add when contributing less
    int		key;
    vec3_t	color;				//PENTA: ed of Shelob => dlight color
    int		style;				//PENTA: lightstyle (flickering/candle/....)
    vec3_t	angles;				//PENTA
    int		filtercube;			//PENTA
    int		pflags;				//PENTA
    entity_t *owner;
} dlight_t;


#define	MAX_BEAMS	24
typedef struct
{
    int		entity;
    struct model_s	*model;
    float	endtime;
    vec3_t	start, end;
} beam_t;

#define	MAX_EFRAGS		640
#define	MAX_MAPSTRING	2048
#define	MAX_DEMOS		8
#define	MAX_DEMONAME	16

typedef enum
{
    ca_dedicated, 		// a dedicated server with no ability to start a client
    ca_disconnected, 	// full screen console with no connection
    ca_connected		// valid netcon, talking to a server
} cactive_t;

//
// the client_static_t structure is persistant through an arbitrary number
// of server connections
//
typedef struct
{
    cactive_t	state;

// personalization data sent to server
    char		mapstring[MAX_QPATH];
    char		spawnparms[MAX_MAPSTRING];	        // to restart a level

// demo loop control
    int			demonum;		                    // -1 = don't play demos
    char		demos[MAX_DEMOS][MAX_DEMONAME];		// when not playing

// demo recording info must be here, because record is started before
// entering a map (and clearing client_state_t)
    qboolean	demorecording;
    qboolean	demoplayback;
    qboolean	timedemo;
    int			forcetrack;			                // -1 = use normal cd track
    FILE		*demofile;
    int			td_lastframe;		                // to meter out one message a frame
    int			td_startframe;		                // host_framecount at start
    float		td_starttime;		                // realtime at second frame of timedemo


// connection information
    int			signon;			                    // 0 to SIGNONS
    struct qsocket_s	*netcon;
    sizebuf_t	message;		                    // writing buffer to send to server

} client_static_t;

extern client_static_t	cls;

//
// the client_state_t structure is wiped completely at every
// server signon
//
typedef struct
{
    int			movemessages;	            // since connecting to this server
                                            // throw out the first couple, so the player
                                            // doesn't accidentally do something the
                                            // first frame
    usercmd_t	cmd;			            // last command sent to the server

// information for local display
    int			stats[MAX_CL_STATS];	    // health, etc
    int			items;			            // inventory bit flags
    float	    item_gettime[32];	        // cl.time of aquiring item, for blinking
    float		faceanimtime;	            // use anim frame if cl.time < this

    cshift_t	cshifts[NUM_CSHIFTS];	    // color shifts for damage, powerups
    cshift_t	prev_cshifts[NUM_CSHIFTS];	// and content types

// the client maintains its own idea of view angles, which are
// sent to the server each frame.  The server sets punchangle when
// the view is temporarliy offset, and an angle reset commands at the start
// of each level and after teleporting.
    vec3_t		mviewangles[2];	            // during demo playback viewangles is lerped
                                            // between these
    vec3_t		viewangles;

    vec3_t		mvelocity[2];	            // update by server, used for lean+bob
                                            // (0 is newest)
    vec3_t		velocity;		            // lerped between mvelocity[0] and [1]

    vec3_t		punchangle;		            // temporary offset

// pitch drifting vars
    float		idealpitch;
    float		pitchvel;
    qboolean	nodrift;
    float		driftmove;
    double		laststop;

    float		viewheight;
    float		crouch;			             // local amount for smoothing stepups

    qboolean	paused;			             // send over by server
    qboolean	onground;
    qboolean	inwater;

    int			intermission;	            // don't change view angle, full screen, etc
    int			completed_time;	            // latched at intermission start

    double		mtime[2];		            // the timestamp of last two messages
    double		time;			            // clients view of time, should be between
                                            // servertime and oldservertime to generate
                                            // a lerp point for other data
    double		oldtime;		            // previous cl.time, time-oldtime is used
                                            // to decay light values and smooth step ups


    float		last_received_message;	    // (realtime) for net trouble icon

//
// information that is static for the entire time connected to a server
//
    struct model_s		*model_precache[MAX_MODELS];
    struct sfx_s		*sound_precache[MAX_SOUNDS];

    char		levelname[40];	            // for display on solo scoreboard
    int			viewentity;		            // cl_entitites[cl.viewentity] = player
    int			maxclients;
    int			gametype;

// refresh related state
    struct model_s	*worldmodel;	        // cl_entitites[0].model
    struct efrag_s	*free_efrags;

    int			num_entities;	            // held in cl_entities array
    int			num_statics;	            // held in cl_staticentities array
    entity_t	viewent;			        // the gun model

    int			cdtrack, looptrack;	        // cd audio

// frag scoreboard
    scoreboard_t	*scores;		        // [cl.maxclients]

    int			server_proto_version;       //PENTA: Backwards compatible
} client_state_t;


//
// cvars
//
extern	cvar_t	cl_name;
extern	cvar_t	cl_color;

extern	cvar_t	cl_upspeed;
extern	cvar_t	cl_forwardspeed;
extern	cvar_t	cl_backspeed;
extern	cvar_t	cl_sidespeed;

extern	cvar_t	cl_movespeedkey;

extern	cvar_t	cl_yawspeed;
extern	cvar_t	cl_pitchspeed;

extern	cvar_t	cl_anglespeedkey;

extern	cvar_t	cl_autofire;

extern	cvar_t	cl_shownet;
extern	cvar_t	cl_nolerp;

extern	cvar_t	cl_pitchdriftspeed;
extern	cvar_t	lookspring;
extern	cvar_t	lookstrafe;
extern	cvar_t	sensitivity;

extern	cvar_t	m_pitch;
extern	cvar_t	m_yaw;
extern	cvar_t	m_forward;
extern	cvar_t	m_side;

#define SHOWNET(x) if(cl_shownet.value == 2) Con_Printf ("%3i:%s\n", msg_readcount-1, x);

#define	MAX_TEMP_ENTITIES	64			// lightning bolts, etc
#define	MAX_STATIC_ENTITIES	128			// torches, etc

extern	client_state_t	cl;

// FIXME, allocate dynamically
extern	efrag_t			cl_efrags[MAX_EFRAGS];
extern	entity_t		cl_entities[MAX_EDICTS];
extern	entity_t		cl_static_entities[MAX_STATIC_ENTITIES];
extern	lightstyle_t	cl_lightstyle[MAX_LIGHTSTYLES];
extern	dlight_t		cl_dlights[MAX_DLIGHTS];
extern	entity_t		cl_temp_entities[MAX_TEMP_ENTITIES];
extern	beam_t			cl_beams[MAX_BEAMS];

//=============================================================================

//
// cl_main
//
dlight_t    *CL_AllocDlight (int key);
void	    CL_DecayLights (void);

void        CL_Init (void);

void        CL_EstablishConnection (char *host);
void        CL_Signon1 (void);
void        CL_Signon2 (void);
void        CL_Signon3 (void);
void        CL_Signon4 (void);

void        CL_Disconnect (void);
void        CL_Disconnect_f (void);
void        CL_NextDemo (void);

#define			MAX_VISEDICTS	256
extern	int				cl_numvisedicts;
extern	entity_t		*cl_visedicts[MAX_VISEDICTS];

extern	int				cl_numlightvisedicts;
extern	entity_t		*cl_lightvisedicts[MAX_VISEDICTS];

//
// cl_input
//
typedef struct
{
    int		down[2];		// key nums holding it down
    int		state;			// low bit is down state
} kbutton_t;

extern	kbutton_t	in_mlook, in_klook;
extern 	kbutton_t 	in_strafe;
extern 	kbutton_t 	in_speed;

void        CL_InitInput (void);
void        CL_SendCmd (void);
void        CL_SendMove (usercmd_t *cmd);

void        CL_ParseTEnt (void);
void        CL_UpdateTEnts (void);

void        CL_ClearState (void);


int         CL_ReadFromServer (void);
void        CL_WriteToServer (usercmd_t *cmd);
void        CL_BaseMove (usercmd_t *cmd);

float       CL_KeyState (kbutton_t *key);

//
// cl_demo.c
//
void        CL_StopPlayback (void);
int         CL_GetMessage (void);

void        CL_Stop_f (void);
void        CL_Record_f (void);
void        CL_PlayDemo_f (void);
void        CL_TimeDemo_f (void);

//
// cl_parse.c
//
void        CL_ParseServerMessage (void);
void        CL_NewTranslation (int slot);

//
// cl_tent
//
void        CL_InitTEnts (void);
void        CL_SignonReply (void);
